The author of that article was working with a Publishing feature Design Manager master page and wrapped the control inside of an HTML comment block. (<!-- -->) You will not need this for a non-publishing site master paged edited in SharePoint Designer.

To get the crumb trail display exactly where I wanted it I added it just after the "</h1>" tag in the master page and added this to the article's CSS: .my-breadcrumb { margin-top:0px; margin-left:3px; font-size:8pt; }